Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa最新文献

Optimizing vertically-mounted jet fans in ventilation shafts for a rail overbuild 优化通风井中垂直安装的喷气风扇，以解决铁路过度建设问题

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2021-06-03 DOI: 10.1201/9781003188476-29

R. Ray, E. Fuster, S. Lee

引用次数: 1

Anti-caking treated rock dust and its effect on downwind respirable dust measurements 抗结块处理的岩石粉尘及其对下风呼吸性粉尘测量的影响

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2021-06-03 DOI: 10.1201/9781003188476-33

M. Harris, S. Klima, C. B. Brown, I. E. Perera, J. A. Addis, L. L. Chasko, J. Myers

引用次数: 0

Design of mine bulk air cooling systems: Numerical, empirical and experimental validation 矿山散风冷却系统设计:数值、经验和实验验证

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2021-06-03 DOI: 10.1201/9781003188476-17

A. F. Kuyuk, S. Ghoreishi‐Madiseh, A. Sasmito

引用次数: 0

Design and characterization of canopy air curtain for protecting against diesel particulate matter exposures in underground mines 地下矿井柴油机颗粒物暴露防护罩式气幕的设计与表征

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2020-10-09 DOI: 10.21203/rs.3.rs-89151/v1

J. Noll, Randy S. Reed, Drew Potts, M. Shahan

{"title":"Design and characterization of canopy air curtain for protecting against diesel particulate matter exposures in underground mines","authors":"J. Noll, Randy S. Reed, Drew Potts, M. Shahan","doi":"10.21203/rs.3.rs-89151/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-89151/v1","url":null,"abstract":"\u0000 Blasters are one of the highest exposed work groups to diesel particulate matter (DPM) in underground metal/nonmetal mining. These workers can spend a good portion of their day under a canopy in a basket loading blastholes with explosives. Therefore, one way of potentially reducing their exposures to DPM is to place a canopy air curtain (CAC) on the basket of the ANFO loader. In the original design of the CAC on a roof bolting machine and shuttle car, a fan draws in air through a filter to capture the dust and then supplies clean air beneath the canopy where a miner is working. This paper describes the testing of a CAC that was redesigned to fit an ANFO loader and prevent exposures to DPM as well as respirable dust. Laboratory measurements demonstrated reductions of submicron particles that relate to the percent reductions of DPM. The CAC provided substantial protection of mine workers to DPM (80% reductions), from within 15.24 cm (6 inches) of the edge of the CAC using a 7.62-cm (3-inch) lip. As the mine worker approaches the edges of the CAC, the percent reduction starts to reduce to the 30–50% range. The mine worker achieves the best results when within 15.24 cm (6 inches) from the edge of the CAC. In addition, the CAC should be located such that the breathing zone of the mine worker is 25.4–50.8 cm (10–20 inches) below the CAC.","PeriodicalId":91133,"journal":{"name":"Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80452854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Main Ventilation 主要通风

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2020-07-25 DOI: 10.1007/978-3-030-49803-0_5

Carlos Sierra

引用次数: 0

Secondary Ventilation 二次通风

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2020-01-01 DOI: 10.1007/978-3-030-49803-0_8

Carlos Sierra

引用次数: 0

Correction to: Mine Ventilation 修正:矿井通风

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2020-01-01 DOI: 10.1007/978-3-030-49803-0_9

Carlos Sierra

引用次数: 0

Improving stopping construction to minimize leakage. 改进停止施工，减少泄漏。

Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa Pub Date : 2012-07-01

Roy H Grau, Andrew L Mazzella, Anu L Martikainen

{"title":"Improving stopping construction to minimize leakage.","authors":"Roy H Grau, Andrew L Mazzella, Anu L Martikainen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The proper sealing of stoppings is an important step in reducing leakage from the intake to the return airways. Leakage and the subsequent loss of ventilation resulting from improperly sealed stoppings can lead to unhealthy and unsafe working conditions. The research presented in this paper investigates the total leakage of a stopping, including air leakage through the stopping, at the stopping perimeter, and through the coalbed. The study also examines sealing considerations for stoppings that are constructed under roof control screen, the effects that wooden wedges had on inhibiting efficient application of polyurethane foam sealant, and airflow leakage through the surrounding coal. The work involved building a stopping in a dead end room of the NIOSH Safety Research Coal Mine and then pressurising the room using compressed air. Stopping leakage was evaluated by measuring air pressure loss in the enclosed room due to the air leakage. Part of the research utilises a diluted soap solution that was applied to the stopping and the surrounding coal to detect air leakage signified by bubble formations. The results show that stopping leakage can be minimised with proper sealing.</p>","PeriodicalId":91133,"journal":{"name":"Journal of the Mine Ventilation Society of South Africa. Mine Ventilation Society of South Africa","volume":"65 3","pages":"16-21"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4567546/pdf/nihms715693.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34010706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0